The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis.

Jul 20, 2025 · Knee Pain Knee pain is an extremely common symptom. Lots of issue can cause it. It may be a temporary injury or chronic condition like arthritis. You can usually treat knee pain at home with …

Jan 25, 2023 · Knee pain may be the result of an injury, such as a ruptured ligament or torn cartilage. Medical conditions — including arthritis, gout and infections — also can cause knee pain.

Sep 5, 2025 · The knee joint is a complex structure that involves bones, tendons, ligaments, and muscles for normal function. Three bones come together in the knee joint: the tibia, femur, and patella.

Apr 18, 2025 · Knee pain can result from injury, arthritis, or overuse. Learn about its causes, symptoms, and treatment options.

Apr 24, 2024 · Do you have knee pain? Learn about the common causes, based on the location of the pain, and when you should see a doctor about your pain.

knee, hinge joint that is formed by the meeting of the thigh bone (femur) and the larger bone (tibia) of the lower leg. The knee is the largest joint in the body and has to sustain the greatest stresses, since it …